Improvement in stove-pipe joints



WILUAM SUM.

improvement 'in Stove Pipe 10i/nts.

N0. 115,900; figa] Patentedluneld.

mma/if:

PATENT OFFICE..

WILLIAM STINE, OF ELMORE, OHIO.

,-IMPROVEMENT IN STCVE-PlPE JOINTS.

Specification forming part of Letters Patent No. 115,906, dated June 13, 1871.

To all whom. tt 'may concern:

improvement in method of connecting thejoints or lengths of pipe for smoke-stacks for steam-boilers or other purposes, as well as the joints of common stove-pipe or hot or cold air pipes within buildings; and consists in an open grooved ring of sheet meta-l, which, by means of a stud and cankr/etric connected therewith, is expande in diameter and made to tightly secure the ends of the pipe, as will be hereinafter more fully described.

I n the accompanying drawing, Figure 1 represents a sectional side view of two sections of pipe confined together according to my invention. Fig. 2 is a cross-section of Fig. 1 on the line :c Fig. 3 is a view of the fasteningring detached.

Similar letters of reference indicate correspondin g parts.

A represents the ring, which is simply a piece of sheet metal curved to about the required diameter, with a'groove or indentation, B, around it, and with a stud, C, and slot D near one end, and a hole, E, near the other end. F is a stud or pin, which passes through the hole E, and also through the slot D, upon the inner end of which is fastened the cam G. Upon the outer end of this stud thumb-ears H arefriveted or fastened, by means of which the stud is turned, and the face of the cam is brought to bear against the fixed stud C. The

ends of the joints of pipe are bent inward or beveled to correspond with the groove or indente-tion B- in the ring, as seen in Fig. 1.

In this example of my invention there are two studs in the slot-end, connected by the strap I, which has shoulders; but the second stud and strap are designed for supporting the stud C. The cani may work either against the stud or the shoulder of I.

'Ihe operation will be readily understood from the drawing. The joints of pipe (whether large or small) being prepared by beveling their ends and making half a hole in each, so as to form an entire hole for the stud F to project, as seen in Fig. 2, they are placed together,

with the ring inclosed and stud F projecting.

The ring is now expanded by turning the stud F` so as to bring the cam in contact with the stud C or shoulder of I and force it oli' till the ring-groove B receives the beveled ends of the joints and tightly fastens them together, as seen in Fig. 1.

The stud F may be turned by a key on its square end. When the thumb-ears are used they are riveted into the end of the stud after the ring has been placed within the joints of pipe.

This is a very convenient and effective method for connecting joints of pipe, whether it be the ordinary stove-pipe or pipe for smokestacks or other purposes.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- Connecting stove and other pipe by means of an adjustable ring expanded by a cam, con structed, arranged, and operated substantially as described.

WILLIAM STINE. lWitnesses:

J. B. D. CLARK, HENRY Lrvnneoon. 

